Stop in for a cup of coffee

dukeboy_318 said
Spent the day tuning the old John deer 4440 we have. Last year, my brother sent the injection pump off to be rebuilt, professionally. Then complained all summer and winter that the thing felt down on power so it must be the engine needing rebuilt.
Nope, popped the injection cover off, when they rebuilt it, they didn’t turn in the fuel control screw far enough, barely 50 percent of stock setting. How it even ran is surprising. So I cranked it into the factory setting. Then decided the hell with it, let’s see what this does. Screwed it in two more turns. She’s a different animal now. She mean. Probably added 100 hp today, conservative guess, by the time you figure where it was at vs where it’s at now. Need to put my EGT gauge on and maybe turn it in some more. I know some guys turn it all the way in or even remove the plate but I don’t wanna go that radical...yet. With no intercooler, things will get hot quick

One of my instructors as an apprentice was a master mechanic for a SoCal highway contractor. Ernie loved Detroits and much of their equipment was Euclid green. One of the exceptions was an HD 41 Fiat-Allis, known to most as "Fat Alice" :lol:.
525 horse V-12 Cummins

They had it rented to a mine in the desert that produced the raw materials for Portland Cement production. Same operator everyday, just push rock and sand, nothing wild but a lot of it. The Cummins expired and Ernie goes out to retrieve it, takes it back to the shop and goes all the way through it then off to the engine dyno at a local tractor dealer. Get's it all dialed in and back to the desert it goes. Same operator after about 15 minutes goes back to Ernie who was monitoring things, "Ernie! You gotta turn this thing down! It's gonna hurt somebody!". :rofl: "Just the way I like it."says Ernie.